A = 2 b = 3,6, h = 1,6, bo’lsa, s = h/2 (a+b) ifodaning son qiymatini toping?

5.Hisoblang; ∙

A) 21; B) 1,4; C) 1,5; D) 210;

6. Tenglamani yeching: .

A) x≤-5; B) x≥-5; C) x<5; D) x≥5;

7. Tenglamani yeching: 3x²=48;

A) x = 4; B) x = -4; C) x_1,2=4; D) x=8;

8. Tenglamani yeching; x²+9x=0

A) x_1,2= -9; B) x_1,2=3; C) x₁=0, x₂= -9 D) x₁=0, x₂=-9

9. Kvadrat tenglamani yeching: x²+x-6=0.

A) x₁=-3, x₂=2; B) x₁=3, x₂=-2; C) x_1,2=6; D) x₁=-1, x₂=2;

10. Kvadrat tenglamani yeching: x²+7x+6=0

A) x₁=1, x₂=-1; B) x₁=-6, x₂=-1; C) x₁=-7, x₂=-6; D) x₁=1-, x₂=-5;

11.Kvadrat tenglamani yeching: x²-7x+10= 0

A) x₁= -2, x₂=2; B) x₁= -5, x₂= 2; C) x₁=5, x₂=1; D) x₁=2, x₂=5;

12.Tengsizlikni yeching: 2x²-8≤0

A) -2≤x≤2; B) -2≤x; C) x≥2; D) 0≤x≤4;

13. Tengsizlikni yeching: (x-1)(x+7)<0.

A) x<-7; B) -7

13. 
    Tengsizlikni yeching. 6x²+5x-6>0.
    

A) x>3/2; B) x<3/2; C) x<-3/2, x> 2/3; D) Yechimi yo’q.
15. Tenglamani yeching: x²=64

A) x_1,2= 8; B) x=8; C) x=-8; D) x=32;

Yopiq test savollari.

1. 
   Tenglamalar sistemasini yechish deganda nimani tushunasiz?
   
2. 
   Kvadrat tenglama nima?
   
3. 
   Viyet teoremasini yozing?
   
4. 
   Kvadrat funksiya nima?
   
5. 
   Parabola nima?
   

9-sinf. Test javoblari.

1. A 6. D 11. D

2. B 7. C 12. A

3. D 8. C 13. B

4. D 9. A 14. C

5. A 10. B 15. A
Yopiq test javoblari.

1. 
   tenglamalar sistemasini yechishni bu uning hamma yechimlarini topish yoki yo’qliginianizlashdi.
   
2. 
   Ax2+bx=0, bunda a=0, x-nomallum
   
3. 
   X1+x2= -p, x1∙2=q.
   
4. 
   Y=ax2+bx+c bunda a=0,x-xaqiqiy o’zgaruvchi.
   
5. 
   Y=x2 funksiyaning grafigi bo’lgan egri chiziq parabola deyiladi.
   

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